(19)

(11)

EP 4 308 179 A2

(12)

(88) Date of publication A3: 24.11.2022 (43) Date of publication: 24.01.2024 Bulletin 2024/04 (21) Application number: 22715173.5 (22) Date of filing: 15.03.2022

(51) International Patent Classification (IPC):  A61L 2/10(2006.01) H01J 61/00(2006.01) A61L 2/24(2006.01) (52) Cooperative Patent Classification (CPC): A61L 2/10; A61L 2/24; A61L 2202/122; A61L 2202/14 (86) International application number: PCT/IB2022/052313 (87) International publication number: WO 2022/195467 (22.09.2022 Gazette 2022/38)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 15.03.2021 IT 202100006113 (71) Applicant: Pratrivero S.p.A. 13835 Valdilana (BI) (IT)	(72) Inventor: BARBERIS CANONICO, Sergio 13835 Valdilana (BI) (IT) (74) Representative: Studio Torta S.p.A.  Viale Antonio Silvani, 6 40122 Bologna 40122 Bologna (IT)